system.asm

spce061单片机的一些程序！C语言和汇编语言都有

.INCLUDE hardware.inc 

.CODE
.PUBLIC _SystemInit;              			 	  //系统初始化
_SystemInit: .PROC  
     r1=0x0004                				  //开2Hz中断
     [P_INT_Ctrl]=r1
     IRQ ON 
     retf;
	.ENDP;

.PUBLIC _F_InitIOA;               				  //初始化IOA口
_F_InitIOA: .PROC  
     PUSH bp TO [sp];
     bp=sp+1;
     r1=[bp+3];
     [P_IOA_Dir]=r1;
     r1=[bp+4];
     [P_IOA_Attrib]=r1;
     r1=[bp+5];
     [P_IOA_Data]=r1;
     POP bp FROM [sp];
     retf;
	.ENDP;

.PUBLIC	_LightOn;               		  //IOA口LED点亮
_LightOn:	.PROC   
			r1= 0xFFFF;
			[P_IOA_Data] = r1;
			retf;
			.ENDP

.PUBLIC	_LightOff;        				  //IOA口LED熄灭
_LightOff:	.PROC
			r1= 0x0000;
			[P_IOA_Data] = r1;
			retf;
			.ENDP

.PUBLIC _Clear_WatchDog          				  //清看门狗
_Clear_WatchDog: .PROC
        r1=0x01
        [P_Watchdog_Clear]=r1
        retf
        .ENDP